CN109990039A - A kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflow - Google Patents
A kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflow Download PDFInfo
- Publication number
- CN109990039A CN109990039A CN201910380999.XA CN201910380999A CN109990039A CN 109990039 A CN109990039 A CN 109990039A CN 201910380999 A CN201910380999 A CN 201910380999A CN 109990039 A CN109990039 A CN 109990039A
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- Prior art keywords
- permanent magnet
- piston rod
- damper
- self
- damping force
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- 238000013016 damping Methods 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000004062 sedimentation Methods 0.000 claims abstract description 7
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflows, including piston rod, piston, permanent magnet, magnet exciting coil, cylinder barrel, front and rear cover, guide ring and sealing device, the piston and permanent magnet ring set are on the piston rod；A pair of of permanent magnet is added in the cylinder barrel rear and front end, and adds a pair of of permanent magnet in rear and front end, can provide bidirectional current in conjunction with front and back end self-induction coil on piston rod for magnet exciting coil；Damp channel is formed between the piston and cylinder barrel.The form that the present invention uses permanent magnet to combine with magnet exciting coil, and it is generated electricity with from sensing mode, both prevented damper from the sedimentation of magnetorheological fluid occurring because leaving unused for a long time, the size that damping force can be changed according to wind-force again, is conducive to long-time service of the MR damper under the complexity weather condition of west area.
Description
Technical field
The present invention relates to damper fields, more particularly to a kind of adjustable self-induction type MR damper of damping force bidirectionally
And its workflow.
Background technique
China region is vast in territory, and the great Northwest of the length and breadth of land is dispersed with petroleum resources abundant, but geographical ring complicated and changeable
Border brings not molehill to resource transmission from West to East.Nowadays the transmission mode of petroleum resources mostly be in the form of pipeline into
Row is generally existed pipeline with steelframe support distribution to avoid topography from being distributed bring difficulty to pipeline in rugged steep hills area
In midair.Following problem is that the frequent strong wind of intermountain can constantly change the shape without support segment pipe, holds in support end
It is also easy to produce fatigue fracture, oil gas is revealed, there is the great wasting of resources and security risk.In response to this, it is put in support end
Fixed bearing is abandoned, damper bearing is used instead, so that pipeline slow deformation under high wind conditions, reduces the generation of fatigue fracture.With
Magnetorheological fluid is that MR damper made of medium is swift in response, contributes that big, structure is simply prominent under magnetic field,
But some traditional MR dampers stand generation sedimentation there is magnetorheological fluid for a long time and lose and damp under performance, zero current
The disadvantages of device power output is too small.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of adjustable self-induction type of damping force bidirectionally is magnetorheological
Damper and its workflow, the form combined using permanent magnet with magnet exciting coil, and generated electricity with from sensing mode, it both prevents from hindering
The sedimentation of magnetorheological fluid occurs because leaving unused for a long time for Buddhist nun's device, and can change the size of damping force according to wind-force, is conducive to magnetorheological
Long-time service of the damper under the complexity weather condition of west area.
The technical solution that the present invention solves the problems, such as is: a kind of adjustable self-induction type MR damper of damping force bidirectionally,
It is characterized in that, including piston rod, piston, permanent magnet, magnet exciting coil, cylinder barrel and is installed on the drive end bearing bracket at cylinder barrel both ends, rear end
Lid；The piston rod is installed in cylinder barrel, and on the piston rod, the magnet exciting coil is wound in forever for the piston and permanent magnet ring set
Magnet outer layer；The piston rod is equipped with front end self-induction coil, rear end self-induction coil, two self-induction coils be located at piston before,
Rear side；Magnetorheological fluid is full of in the cylinder barrel, and front and rear ends add front end permanent magnet, rear end permanent magnet respectively in cylinder barrel,
In conjunction with front and back ends self-induction coil on piston rod bidirectional current, the piston can be provided for magnet exciting coil in piston rod movement
Damp channel is formed between cylinder barrel.
Further, described piston rod one end is stretched out outside cylinder through drive end bearing bracket, guide ring, sealing device, and the other end passes through
Right end guide ring is retained in cylinder.
Further, the drive end bearing bracket, rear end cap are bolted with the front end face of cylinder barrel, rear end face respectively, connect
Static seal is carried out using O-ring seal between contacting surface.
Further, this spy envelope, connect to be formed being respectively adopted with front and rear cover contact position by dustband for the piston rod
Dynamic sealing, the dustband are double-lipped dustband.
Further, the piston uses three bay structurals, and permanent magnet is nested on the intersegmental piston rod of piston.
Further, the piston rod outboard end is connected with earrings, and the rear end cap is connected with hanging ring.
Further, (outer layer) is equipped with magnet exciting coil above the permanent magnet；(the piston of inside below the permanent magnet
Bar) form magnetic conduction channel.(piston rod is overlapped or offset using the magnetic field that magnet exciting coil is passed through forward and reverse electric current and permanent magnet
It moves into cylinder barrel or is moved to outside cylinder barrel, front and back ends self-induction coil cooperates with the front and back ends permanent magnet added, and is excitation wire
Circle provides electric current forward or backwards), form magnetizing or demagnetizing for permanent magnet.
The workflow of the above-mentioned adjustable self-induction type MR damper of a kind of damping force bidirectionally, which is characterized in that described
Permanent magnet maintains certain magnetic field intensity inside damper, avoids the sedimentation situation of magnetorheological fluid, while magnetorheological fluid has
For shear yield strength centainly；
By outer load, piston rod is moved into cylinder barrel, front and back ends self-induction coil combination front and back ends permanent magnet, is magnet exciting coil
Positive current is provided, the magnetic direction that magnet exciting coil generates is superimposed in the same direction with permanent magnet, and total magnetic intensity increases, and magnetorheological fluid is cut
Yield strength increase is cut, damping force increases with it；
Outer load disappears, and piston rod moves back into equilbrium position, front and back ends self-induction coil combination front and back ends permanent magnetism to outside cylinder barrel
Body provides counter current for magnet exciting coil, and the magnetic direction that magnet exciting coil generates reversely is offset with permanent magnet, and total magnetic intensity subtracts
Small, the shear yield strength of magnetorheological fluid reduces, and damping force reduces therewith, accelerates recovery process.
In conclusion the adjustable self-induction type MR damper of a kind of damping force bidirectionally provided by the invention, using permanent magnetism
The form that body is combined with magnet exciting coil, and generated electricity with from sensing mode, both prevent damper that magnetic current occurs because leaving unused for a long time
Become the sedimentation of liquid, and the size of damping force can be changed according to wind-force, be suitable for west area pipeline transportation use, therefore will have wide
Wealthy market prospects and economic benefit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it is therefore apparent that the accompanying drawings in the following description is only this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is a kind of adjustable self-induction type MR damper structural schematic diagram of damping force bidirectionally；
Fig. 2 is magnetic structure schematic diagram of the present invention；
Fig. 3 is static and dynamic sealing structural schematic diagram of the present invention；
In the figure, it is marked as earrings 1, this spy seal 2, guide ring 3, O-ring seal 4, dustband 5, front end permanent magnet 6, cylinder barrel 7, encourage
Magnetic coil 8, damp channel 9, rear end self-induction coil 10, right end guide ring 11, rear end cap 12, hanging ring 13, rear end permanent magnet 14, magnetic
Rheology liquid 15, piston 16, permanent magnet 17, front end self-induction coil 18, bolt 19, drive end bearing bracket 20, piston rod 21, magnetic conduction channel 22.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, shows the present embodiment provides a kind of adjustable self-induction type MR damper of damping force bidirectionally, wraps
It includes piston rod 21, piston 16, permanent magnet 17, magnet exciting coil 8, cylinder barrel 7, drive end bearing bracket 20, rear end cap 12, guide ring 3 and moves close
(permanent magnet and the permanent magnet added all are ring structures, are convenient on piston rod 21 for seal apparatus, piston 16 and 17 ring set of permanent magnet
It is placed on piston rod).It is full of magnetorheological fluid 15 in cylinder barrel 7, and adds a pair of of permanent magnet 6,14 in rear and front end, in conjunction with piston rod
Front and back ends self-induction coil 18,10 can provide bidirectional current for magnet exciting coil 8 on 21, and it is logical that damping is formed between piston 16 and cylinder barrel
Road 9.The present embodiment selects the Nd-Fe-B permanent magnet of the N35 trade mark, and magnetorheological fluid selects the Materials Research Laboratories development of Chongqing instrument
MRF-J01 type, saturation induction density 0.5T.
Fig. 1, Fig. 2, Fig. 3 are please referred to, 21 one end of piston rod is stretched out outside cylinder through drive end bearing bracket 20, guide ring 3, sealing device, and
It is connect with earrings 1, the other end is retained in cylinder by right end guide ring 11.Drive end bearing bracket 20, rear end cap 12 are respectively and before cylinder barrel 7
End face, rear end face are connected by bolt 19, carry out static seal using O-ring seal 4 between contact surface；Rear end cap 12 and hanging ring 13
It is connected.Piston rod 21 connects with two groups of front and back this spy's envelope 2, dustband 5 and to form dynamic sealing, and dustband 5 is double-lipped dustband.
Piston 16 uses three bay structurals, and permanent magnet 17 is nested on the intersegmental piston rod 21 of piston 16.Permanent magnet
17 tops (outer layer) are equipped with magnet exciting coil 8, and 17 lower section (inboard piston bar) of permanent magnet forms magnetic conduction channel 22.Utilize magnet exciting coil
19 are passed through forward and reverse electric current and the magnetic field of permanent magnet 17 is overlapped or offsets, and form magnetizing or demagnetizing for permanent magnet 17.
The workflow of damper of the present invention is as follows:
Permanent magnet 17 maintains certain magnetic field intensity inside damper, avoids the sedimentation situation of magnetorheological fluid 15, while magnetic
Rheology liquid 15 has certain shear yield strength, and piston rod 21 can produce damping force once moving, and has higher
Safety；
As shown in Figure 1, in the case where by outer load, piston rod 21 move right (self-induction coil under piston rod drive (to the right
Movement), moved in the magnetic field of permanent magnet added and generate self inductance current), two groups of self-induction coils cooperate with the permanent magnet added,
The self-induction coil for generating self inductance current is connected with magnet exciting coil, provides positive current, the magnetic field that magnet exciting coil generates for magnet exciting coil 8
Direction is superimposed in the same direction with permanent magnet 17, and total magnetic intensity increases, and the shear yield strength of magnetorheological fluid 15 increases, and damping force is therewith
Increase；
Outer load disappears, piston rod 21 move downward return to equilbrium position (self-induction coil (moves downward) under piston rod drive,
Moved in the magnetic field of permanent magnet added and generate self inductance current), two groups of self-induction coils cooperate with the permanent magnet added, and are produced from
The self-induction coil of inducing current is connected with magnet exciting coil, provides counter current for magnet exciting coil 8, the magnetic direction that magnet exciting coil generates with
Permanent magnet 17 is reversely offset, and total magnetic intensity reduces, and the shear yield strength of magnetorheological fluid 15 reduces, and damping force reduces therewith.
When in use, pipeline is connected with earrings, this design method can allow MR damper to have in strong wind weather
Bigger damping force, reduce the vibration of oil-gas pipeline, and after wind is crossed, pipeline in elastic recovery process due to damping
Power reduces, and accelerates recovery process.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., are all included in the scope of protection of the present invention.
Claims (7)
1. a kind of adjustable self-induction type MR damper of damping force bidirectionally, which is characterized in that including piston rod (21), piston
(16), permanent magnet (17), magnet exciting coil (8), cylinder barrel (7) and the drive end bearing bracket (20) at cylinder barrel both ends, rear end cap (12) are installed on；
The piston rod is installed in cylinder barrel, and the piston (16) and permanent magnet (17) ring set are on piston rod (21), the excitation wire
Circle is wound in permanent magnetism volume surrounding；The piston rod is equipped with front end self-induction coil (18), rear end self-induction coil (10), two self-induction lines
Circle is located at the forward and backward side of piston；Magnetorheological fluid (15) are full of in the cylinder barrel (7), and front and back ends are added respectively in cylinder barrel
Front end permanent magnet (6), rear end permanent magnet (14), can be in piston rod movement in conjunction with front and back ends self-induction coil on piston rod (21)
Bidirectional current is provided for magnet exciting coil (8), forms damp channel (9) between the piston (16) and cylinder barrel.
2. the adjustable self-induction type MR damper of a kind of damping force bidirectionally according to claim 1, which is characterized in that institute
Piston rod (21) one end stated is stretched out outside cylinder through drive end bearing bracket (20), guide ring (3), sealing device, and the other end is oriented to by right end
Ring (11) is retained in cylinder.
3. the adjustable self-induction type MR damper of a kind of damping force bidirectionally according to claim 2, which is characterized in that institute
Drive end bearing bracket (20), the rear end cap (12) stated are connect with the front end face of cylinder barrel (7), rear end face by bolt (19) respectively, contact surface
Between using O-ring seal (4) carry out static seal.
4. the adjustable self-induction type MR damper of a kind of damping force bidirectionally according to claim 2, which is characterized in that institute
The piston rod (21) stated is connected and to form dynamic sealing this spy envelope (2), dustband (5) is respectively adopted with front and rear cover contact position, institute
Stating dustband (5) is double-lipped dustband.
5. the adjustable self-induction type MR damper of a kind of damping force bidirectionally according to claim 1, which is characterized in that institute
The piston (16) stated uses three bay structurals, and permanent magnet (17) is nested on piston (16) intersegmental piston rod (21).
6. the adjustable self-induction type MR damper of a kind of damping force bidirectionally according to claim 1, which is characterized in that institute
It states piston rod outboard end to be connected with earrings (1), the rear end cap (12) is connected with hanging ring (13).
7. a kind of work of the adjustable self-induction type MR damper of damping force bidirectionally according to claim 1 to 6
Make process, which is characterized in that the permanent magnet (17) maintains certain magnetic field intensity inside damper, avoids magnetorheological fluid
(15) sedimentation situation, while magnetorheological fluid (15) has certain shear yield strength；
By outer load, piston rod (21) is moved into cylinder barrel, front and back ends self-induction coil combination front and back ends permanent magnet, is excitation
Coil (8) provides positive current, and the magnetic direction that magnet exciting coil generates is superimposed in the same direction with permanent magnet (17), and total magnetic intensity increases,
The shear yield strength of magnetorheological fluid (15) increases, and damping force increases with it；
Outer load disappears, and piston rod (21) moves back into equilbrium position, front and back ends self-induction coil combination front and back ends to outside cylinder barrel
Permanent magnet provides counter current for magnet exciting coil (19), and the magnetic direction that magnet exciting coil (19) generates reversely is supported with permanent magnet (17)
Disappear, total magnetic intensity reduces, and the shear yield strength of magnetorheological fluid (15) reduces, and damping force reduces therewith, accelerates recovery process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380999.XA CN109990039A (en) | 2019-05-08 | 2019-05-08 | A kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380999.XA CN109990039A (en) | 2019-05-08 | 2019-05-08 | A kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflow |
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| Publication Number | Publication Date |
|---|---|
| CN109990039A true CN109990039A (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910380999.XA Pending CN109990039A (en) | 2019-05-08 | 2019-05-08 | A kind of adjustable self-induction type MR damper of damping force bidirectionally and its workflow |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822009A (en) * | 2019-11-26 | 2020-02-21 | 重庆大学 | Separated double-cylinder magnetorheological damper |
| CN112283276A (en) * | 2020-10-19 | 2021-01-29 | 科马智能悬架技术(青岛)有限公司 | Magneto-rheological damper |
| CN115773330A (en) * | 2022-12-31 | 2023-03-10 | 重庆大学 | Self-powered magneto-rheological hybrid damping device based on external permanent magnet energy collector |
| CN115823173A (en) * | 2022-12-31 | 2023-03-21 | 重庆大学 | Magneto-rheological and permanent magnet mixed self-powered damping device based on nested piston structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215861A (en) * | 2007-12-28 | 2008-07-09 | 天津大学 | Damping force bidirectionally regulating MR damper |
| CN101968096A (en) * | 2010-09-29 | 2011-02-09 | 中国电力科学研究院 | Self-driving magnetorheological damper |
| CN102628252A (en) * | 2012-04-13 | 2012-08-08 | 成都市新筑路桥机械股份有限公司 | Speed locking device for seismic resistance of bridge |
| CN107701644A (en) * | 2017-09-29 | 2018-02-16 | 福州大学 | A kind of self energizing MR damper and its method of work |
| CN108518444A (en) * | 2018-03-22 | 2018-09-11 | 杭州电子科技大学 | Permanent magnet and the hybrid MR damper of magnet exciting coil and its damping adjusting method |
| CN208719241U (en) * | 2018-09-04 | 2019-04-09 | 华东交通大学 | A kind of automatic adjustable self energizing magneto-rheological vibration damper |
| CN209943410U (en) * | 2019-05-08 | 2020-01-14 | 扬州大学 | Damping force bidirectional adjustable self-induction type magneto-rheological damper |
-
2019
- 2019-05-08 CN CN201910380999.XA patent/CN109990039A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215861A (en) * | 2007-12-28 | 2008-07-09 | 天津大学 | Damping force bidirectionally regulating MR damper |
| CN101968096A (en) * | 2010-09-29 | 2011-02-09 | 中国电力科学研究院 | Self-driving magnetorheological damper |
| CN102628252A (en) * | 2012-04-13 | 2012-08-08 | 成都市新筑路桥机械股份有限公司 | Speed locking device for seismic resistance of bridge |
| CN107701644A (en) * | 2017-09-29 | 2018-02-16 | 福州大学 | A kind of self energizing MR damper and its method of work |
| CN108518444A (en) * | 2018-03-22 | 2018-09-11 | 杭州电子科技大学 | Permanent magnet and the hybrid MR damper of magnet exciting coil and its damping adjusting method |
| CN208719241U (en) * | 2018-09-04 | 2019-04-09 | 华东交通大学 | A kind of automatic adjustable self energizing magneto-rheological vibration damper |
| CN209943410U (en) * | 2019-05-08 | 2020-01-14 | 扬州大学 | Damping force bidirectional adjustable self-induction type magneto-rheological damper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822009A (en) * | 2019-11-26 | 2020-02-21 | 重庆大学 | Separated double-cylinder magnetorheological damper |
| CN112283276A (en) * | 2020-10-19 | 2021-01-29 | 科马智能悬架技术(青岛)有限公司 | Magneto-rheological damper |
| CN115773330A (en) * | 2022-12-31 | 2023-03-10 | 重庆大学 | Self-powered magneto-rheological hybrid damping device based on external permanent magnet energy collector |
| CN115823173A (en) * | 2022-12-31 | 2023-03-21 | 重庆大学 | Magneto-rheological and permanent magnet mixed self-powered damping device based on nested piston structure |
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